US4369602A - Surface finishing device - Google Patents
Surface finishing device Download PDFInfo
- Publication number
- US4369602A US4369602A US06/214,996 US21499680A US4369602A US 4369602 A US4369602 A US 4369602A US 21499680 A US21499680 A US 21499680A US 4369602 A US4369602 A US 4369602A
- Authority
- US
- United States
- Prior art keywords
- surface finishing
- flared
- vertex
- finishing accessory
- drive shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims 2
- 238000007373 indentation Methods 0.000 claims 2
- 230000009347 mechanical transmission Effects 0.000 claims 1
- 238000005498 polishing Methods 0.000 abstract description 8
- 238000009991 scouring Methods 0.000 abstract description 2
- 238000013016 damping Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000000135 prohibitive effect Effects 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
- B24D9/08—Circular back-plates for carrying flexible material
Definitions
- the present invention relates to a surface finishing device and more specifically to an element, with possibly an accessory, for polishing, scouring, burnishing or effecting a like treatment with respect to a planar or curved surface made of wood, metal, plastics and so on, in the automobile, wood, construction or other art.
- This invention is of interest in the "do-it-yourself" field.
- Surface finishing accessories are as a rule secured to a semi-rigid support which is itself securedly coupled to a motor.
- Such apparatus especially when used for polishing, has the drawback of jumping over even on a smooth surface and more particularly of streaking the surface in the form of arcuate streaks.
- a first approach has been to insert, between the accessory and its support, a resilient pad made of cellular material (cf. U.S. Pat. No. 2,950,584 granted Aug. 30, 1960) or a deformable enclosure filled with air (cf. U.S. Pat. No. 2,644,280 granted July 7, 1953).
- a second approach consists in fitting a Cardan joint so as to modify the inclination of the accessory relative to the surface (cf. U.S. Pat. No. 4,062,152 granted Dec. 13, 1977).
- This technology besides its prohibitive cost, only resolves inclination, without being universal or homokinetic.
- the present invention has for its object to provide a surface finishing device fulfilling these requirements.
- This device comprises a member one end of which can be coupled to a rotary drive such as a portable electric motor, and the other end of which can be provided with a surface finishing accessory, the member being resilient to allow some distortion along its longitudinal axis. It has at least one annular constriction formed from its lateral surface.
- This member can be hollowed out and made of molded natural or synthetic rubber, or of molded fabric soaked with rubber of elastic material.
- the member has the form of bellows constituted by at least two substantially frustoconical walls connected to each other at their major basis and to a terminal end through a constriction.
- This terminal end may be provided with a generally circular, possibly rigid, platelet having streaks or being formed of an abradant wire lattice.
- the platelet comprises at its periphery a flange which cooperates with an annular protrusion or peripheral ring fitted at the terminal end of the member.
- the platelet comprises, in lieu of the peripheral flanged end, an annular bent rib located on the platelet and cooperating with the annular protrusion or peripheral ring arranged at the terminal end of the member.
- the terminal end is formed of a frustoconical wall which widens out towards the exterior and to which a deformable disc is secured or stuck.
- the member further comprises an insert for cooperation with a coupling means.
- FIG. 1 is a section of a first embodiment of the invention.
- FIG. 2 is a larger scale view of detail A of its terminal end.
- FIG. 3 is a section of an example of platelet.
- FIG. 4 is a larger scale view of its detail B.
- FIG. 5 is a view similar to FIG. 3 showing an alternative form of platelet.
- FIG. 6 is a view similar to FIG. 1 showing another embodiment of the member.
- a surface finishing device which comprises a member 1 the end 2 of which may be coupled to a rotary drive such as a portable electric motor while its other terminal end 3 may be provided with a surface finishing accessory.
- This member 1 is hollowed out and made of resilient material such as molded natural or synthetic rubber, or of molded fabric soaked with rubber.
- the member has the general shape of bellows formed of two generally frustoconical walls 4 and 5 connected to each other at their major basis and respectively to the end 2 on the one hand and, through an annular constriction 6, to the terminal end 3 on the other hand.
- both walls could diverge towards the terminal end, the major basis of one being connected to the minor basis of the other.
- Terminal end 3 appears in the shape of a planar disc which has been hollowed out in its center and the thickness of which decreases outwardly to present, at its periphery, an annular protrusion or peripheral rib 7 (see FIG. 2 for detail A).
- This protrusion can cooperate with a flanged edge 8 (FIGS. 3 and 4) or with a rib 9 (FIG. 5) belonging to a rigid platelet 10 which is removable.
- This platelet may be in itself abradant by incorporation of streaks or be formed of a lattice-work of abradant wires.
- Platelet 10 may also conventionally be the support of a surface finishing accessory 1 for polishing, glossing or abrading. This accessory may be secured at the center of the platelet by means of a screw or plug whose head retracts within a swaged housing 11.
- Platelet 10 may be of metal--for instance coated steel--swaged or cut from a sheet. It may alternatively be of molded plastics as in the embodiment illustrated on FIG. 5. This embodiment has the advantage of making of avail a set of various diameter platelets which are fittable to a same member. It is particularly convenient for use in truing up a smooth surface.
- the embodiment illustrated on FIG. 6 differs basically from the preceding one in its terminal end 12 which is slightly frustoconical and tapers towards its end.
- This embodiment is particularly suitable as a flexible, deformable finishing element which may be secured as by gluing and used for polishing, glossing or burnishing especially bosses.
- the couplable end of the member is provided with an insert 13 molded therewith.
- This insert is fast with the member by means of steps 14 (FIG. 1) or cants 15 (FIG. 6).
- An integral pin 16 (FIG. 6) or a removable one (not shown on FIG. 1) allows coupling the member to the chuck of a motor.
- the frustoconical wall 4 may have an increasing thickness in order to improve the mechanical behavior and the continuity with end 2.
- Damping is provided on the one hand by the elastic material which is used and on the other hand by the bellows shape of the member which allows longitudinal retraction.
- Adaptation of the inclination is provided by the annular constriction 6 which plays the part of a knuckle-joint by making up for obliquity between the plane of the finishing accessory and the surface, through rotation about this constriction.
- the shape given to the bellows allows return to rest position and stabilization by gyroscopic effect.
- the terminal end of the embodiment of FIG. 1 has a diameter of 122 mm. and a height of 60 mm.
- the terminal end of the embodiment of FIG. 6 has a diameter of 20 mm.
- the device of the invention applies suitably for the truing up and finishing of a surface, such as polishing, glossing, burnishing by fitting a corresponding finishing accessory, as well as polishing of bosses.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Cleaning In General (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
A surface finishing device operates by means of a member designed for polishing, scouring, burnishing or the like and constituted by a resilient structure allowing some distortion along its longitudinal axis. This member has an annular constriction formed from its lateral surface, being designed as bellows formed of successive frustoconical sections.
Description
The present invention relates to a surface finishing device and more specifically to an element, with possibly an accessory, for polishing, scouring, burnishing or effecting a like treatment with respect to a planar or curved surface made of wood, metal, plastics and so on, in the automobile, wood, construction or other art. This invention is of interest in the "do-it-yourself" field.
Surface finishing accessories are as a rule secured to a semi-rigid support which is itself securedly coupled to a motor. Such apparatus, especially when used for polishing, has the drawback of jumping over even on a smooth surface and more particularly of streaking the surface in the form of arcuate streaks.
These drawbacks are due to the rigidity of the support which allows neither damping upon engagement nor adaptation of the tool to adjust the accessory parallel to the worked surface.
A first approach has been to insert, between the accessory and its support, a resilient pad made of cellular material (cf. U.S. Pat. No. 2,950,584 granted Aug. 30, 1960) or a deformable enclosure filled with air (cf. U.S. Pat. No. 2,644,280 granted July 7, 1953).
While this technology allows resolving in part the problems of damping, it does not resolve the inclination which is unsufficient to adapt to the plane of the worked surface.
A second approach consists in fitting a Cardan joint so as to modify the inclination of the accessory relative to the surface (cf. U.S. Pat. No. 4,062,152 granted Dec. 13, 1977). This technology, besides its prohibitive cost, only resolves inclination, without being universal or homokinetic.
These solutions have therefore proved unsatisfactory up to now, and it is not possible to find at present on the market a rotary tool fittable on a motor to fulfil correctly the desired task notably of polishing, at a reasonable price for temporary or even professional use.
The present invention has for its object to provide a surface finishing device fulfilling these requirements.
This device comprises a member one end of which can be coupled to a rotary drive such as a portable electric motor, and the other end of which can be provided with a surface finishing accessory, the member being resilient to allow some distortion along its longitudinal axis. It has at least one annular constriction formed from its lateral surface. This member can be hollowed out and made of molded natural or synthetic rubber, or of molded fabric soaked with rubber of elastic material.
Preferably, the member has the form of bellows constituted by at least two substantially frustoconical walls connected to each other at their major basis and to a terminal end through a constriction. This terminal end may be provided with a generally circular, possibly rigid, platelet having streaks or being formed of an abradant wire lattice.
According to a preferred embodiment of the invention, the platelet comprises at its periphery a flange which cooperates with an annular protrusion or peripheral ring fitted at the terminal end of the member.
Alternatively, the platelet comprises, in lieu of the peripheral flanged end, an annular bent rib located on the platelet and cooperating with the annular protrusion or peripheral ring arranged at the terminal end of the member.
According to another embodiment of the invention, the terminal end is formed of a frustoconical wall which widens out towards the exterior and to which a deformable disc is secured or stuck.
The member further comprises an insert for cooperation with a coupling means.
FIG. 1 is a section of a first embodiment of the invention.
FIG. 2 is a larger scale view of detail A of its terminal end.
FIG. 3 is a section of an example of platelet.
FIG. 4 is a larger scale view of its detail B.
FIG. 5 is a view similar to FIG. 3 showing an alternative form of platelet.
FIG. 6 is a view similar to FIG. 1 showing another embodiment of the member.
On FIG. 1, a surface finishing device is shown which comprises a member 1 the end 2 of which may be coupled to a rotary drive such as a portable electric motor while its other terminal end 3 may be provided with a surface finishing accessory. This member 1 is hollowed out and made of resilient material such as molded natural or synthetic rubber, or of molded fabric soaked with rubber. As seen in section along a longitudinal plane, the member has the general shape of bellows formed of two generally frustoconical walls 4 and 5 connected to each other at their major basis and respectively to the end 2 on the one hand and, through an annular constriction 6, to the terminal end 3 on the other hand.
According to a non-illustrated alternative embodiment, both walls could diverge towards the terminal end, the major basis of one being connected to the minor basis of the other.
This protrusion can cooperate with a flanged edge 8 (FIGS. 3 and 4) or with a rib 9 (FIG. 5) belonging to a rigid platelet 10 which is removable. This platelet may be in itself abradant by incorporation of streaks or be formed of a lattice-work of abradant wires. Platelet 10 may also conventionally be the support of a surface finishing accessory 1 for polishing, glossing or abrading. This accessory may be secured at the center of the platelet by means of a screw or plug whose head retracts within a swaged housing 11.
The embodiment illustrated on FIG. 6 differs basically from the preceding one in its terminal end 12 which is slightly frustoconical and tapers towards its end. This embodiment is particularly suitable as a flexible, deformable finishing element which may be secured as by gluing and used for polishing, glossing or burnishing especially bosses.
The couplable end of the member is provided with an insert 13 molded therewith. This insert is fast with the member by means of steps 14 (FIG. 1) or cants 15 (FIG. 6).
An integral pin 16 (FIG. 6) or a removable one (not shown on FIG. 1) allows coupling the member to the chuck of a motor.
The frustoconical wall 4 may have an increasing thickness in order to improve the mechanical behavior and the continuity with end 2.
Operation of the invention derives from the above description. It is to be noted that, for a moderate cost, an intermediate member is obtained between a motor and a finishing accessory, ensuring both damping and adaptation of the inclination of its terminal end to the surface to be machined.
Damping is provided on the one hand by the elastic material which is used and on the other hand by the bellows shape of the member which allows longitudinal retraction. Adaptation of the inclination is provided by the annular constriction 6 which plays the part of a knuckle-joint by making up for obliquity between the plane of the finishing accessory and the surface, through rotation about this constriction.
The shape given to the bellows allows return to rest position and stabilization by gyroscopic effect.
As illustrative example, the terminal end of the embodiment of FIG. 1 has a diameter of 122 mm. and a height of 60 mm. To this end is adaptable a platelet of a diameter of 122 mm. or more: e.g. 160 mm. The terminal end of the embodiment of FIG. 6 has a diameter of 20 mm.
The device of the invention applies suitably for the truing up and finishing of a surface, such as polishing, glossing, burnishing by fitting a corresponding finishing accessory, as well as polishing of bosses.
Claims (3)
1. In combination with a drive shaft and a surface finishing accessory, a device for transmitting to said surface finishing accessory the rotary motion provided from said drive shaft through a single-piece mechanical transmission consisting solely and exclusively in a generally bell-shaped resilient intermediate member having at the input end thereof a flared central vertex couplable to said drive shaft and at the output end thereof a flared peripheral base fittable to said surface finishing accessory, wherein the improvement comprises, between said flared central vertex and said flared peripheral base, an intermediate tapering portion forming a single annular constrictive indentation in the outer surface of said single-piece transmission, whereby the latter is bestowed with universal deformation capacity about its axis of rotation, said surface finishing accessory bearing base being displaceable longitudinally along, laterally from and angularly about said axis.
2. A device as set forth in claim 1, wherein said transmission member comprises two generally frustoconical walls connected to each other through their major basis and respectively to said central input vertex and, through said constrictive indentation, to said peripheral output base.
3. A device as set forth in claim 2, wherein the frustoconical wall connected to the central input vertex has a thickness which increases towards the latter.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8013484 | 1980-06-18 | ||
FR8013484A FR2484891A1 (en) | 1980-06-18 | 1980-06-18 | SURFACE FINISHING DEVICE AND APPLICATION OF THE DEVICE |
Publications (1)
Publication Number | Publication Date |
---|---|
US4369602A true US4369602A (en) | 1983-01-25 |
Family
ID=9243217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/214,996 Expired - Lifetime US4369602A (en) | 1980-06-18 | 1980-12-10 | Surface finishing device |
Country Status (7)
Country | Link |
---|---|
US (1) | US4369602A (en) |
EP (1) | EP0042341B1 (en) |
JP (1) | JPS5818191B2 (en) |
AT (1) | ATE6837T1 (en) |
DE (1) | DE3162871D1 (en) |
ES (1) | ES271599Y (en) |
FR (1) | FR2484891A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5150546A (en) * | 1991-12-02 | 1992-09-29 | Tucker Clifton E | Disc sander implement |
DE19500084A1 (en) * | 1995-01-05 | 1996-07-18 | Reiling Gmbh Fa | Grinding or polishing disc |
US20040121712A1 (en) * | 2002-10-10 | 2004-06-24 | Steffen Wuensch | Grinding plate for an electric hand grinder, and method of producing the same |
DE202016002764U1 (en) | 2016-04-29 | 2016-05-19 | Vojislav Djordjevic | Grinding or polishing approach |
DE102016005180A1 (en) | 2015-05-28 | 2016-12-01 | Vojislav Djordjevic | Grinding or polishing approach |
TWI783810B (en) * | 2021-06-03 | 2022-11-11 | 賓仁善 | Detachable grinding disc for electric grinder with high adhesion efficiency |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2728188B1 (en) * | 1994-12-14 | 1997-03-21 | Seva | METHOD AND DEVICE FOR FIXING AN ABRASIVE TOOL FOR POLISHING |
JP4941095B2 (en) * | 2007-05-22 | 2012-05-30 | 住友電装株式会社 | Terminal fitting |
JP2009123622A (en) * | 2007-11-16 | 2009-06-04 | Yazaki Corp | Crimping terminal for aluminum wire |
JP5682547B2 (en) | 2011-12-12 | 2015-03-11 | 株式会社オートネットワーク技術研究所 | Terminal fitting |
CN113369183B (en) * | 2021-05-06 | 2022-12-06 | 新兴铸管集团邯郸新材料有限公司 | Steel strip surface coating removing device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1777915A (en) * | 1927-08-03 | 1930-10-07 | Douglas Richard | Polisher |
US2892326A (en) * | 1958-01-20 | 1959-06-30 | Warren E Swarthout | Resilient connector |
US3024628A (en) * | 1961-02-06 | 1962-03-13 | Dodge Mfg Corp | Flexible coupling |
US3113407A (en) * | 1961-03-08 | 1963-12-10 | Tocci-Guilbert Berne | Resilient coupling |
US4062152A (en) * | 1976-04-28 | 1977-12-13 | Mehrer Donald D | Vacuum sander |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH237667A (en) * | 1943-01-23 | 1945-05-15 | Caillat Edmond Henri | Sander. |
US2371021A (en) * | 1944-07-25 | 1945-03-06 | Henry J Berry | Rotatable sanding or buffing tool |
US3345785A (en) * | 1964-12-07 | 1967-10-10 | Warren N Riker | Sanding disc assembly |
-
1980
- 1980-06-18 FR FR8013484A patent/FR2484891A1/en active Granted
- 1980-12-10 US US06/214,996 patent/US4369602A/en not_active Expired - Lifetime
-
1981
- 1981-06-15 AT AT81400948T patent/ATE6837T1/en not_active IP Right Cessation
- 1981-06-15 DE DE8181400948T patent/DE3162871D1/en not_active Expired
- 1981-06-15 EP EP81400948A patent/EP0042341B1/en not_active Expired
- 1981-06-16 ES ES1981271599U patent/ES271599Y/en not_active Expired
- 1981-06-18 JP JP56093099A patent/JPS5818191B2/en not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1777915A (en) * | 1927-08-03 | 1930-10-07 | Douglas Richard | Polisher |
US2892326A (en) * | 1958-01-20 | 1959-06-30 | Warren E Swarthout | Resilient connector |
US3024628A (en) * | 1961-02-06 | 1962-03-13 | Dodge Mfg Corp | Flexible coupling |
US3113407A (en) * | 1961-03-08 | 1963-12-10 | Tocci-Guilbert Berne | Resilient coupling |
US4062152A (en) * | 1976-04-28 | 1977-12-13 | Mehrer Donald D | Vacuum sander |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5150546A (en) * | 1991-12-02 | 1992-09-29 | Tucker Clifton E | Disc sander implement |
DE19500084A1 (en) * | 1995-01-05 | 1996-07-18 | Reiling Gmbh Fa | Grinding or polishing disc |
US20040121712A1 (en) * | 2002-10-10 | 2004-06-24 | Steffen Wuensch | Grinding plate for an electric hand grinder, and method of producing the same |
DE102016005180A1 (en) | 2015-05-28 | 2016-12-01 | Vojislav Djordjevic | Grinding or polishing approach |
DE202016002764U1 (en) | 2016-04-29 | 2016-05-19 | Vojislav Djordjevic | Grinding or polishing approach |
TWI783810B (en) * | 2021-06-03 | 2022-11-11 | 賓仁善 | Detachable grinding disc for electric grinder with high adhesion efficiency |
Also Published As
Publication number | Publication date |
---|---|
ES271599Y (en) | 1984-06-16 |
ATE6837T1 (en) | 1984-04-15 |
EP0042341A1 (en) | 1981-12-23 |
ES271599U (en) | 1983-12-01 |
JPS5818191B2 (en) | 1983-04-12 |
JPS5727668A (en) | 1982-02-15 |
FR2484891A1 (en) | 1981-12-24 |
DE3162871D1 (en) | 1984-05-03 |
EP0042341B1 (en) | 1984-03-28 |
FR2484891B1 (en) | 1983-06-24 |
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Free format text: PATENTED CASE |